Watson Down, Ginter up

In today's Sacramento Bee, infielder Keith Ginter was quoted as saying that he had been called up; now, it is known that Watson is the player he is replacing.

Unless Ginter played the outfield in his Triple A stint, Scutaro is in the process of being traded, or the A's are in a holding pattern with Crosby's injured quad, this move smells like it's ego-driven. A confirmation will be determined in how many more AB's Kielty gets as a left-handed hitter; perhaps the A's made this move based on Kielty's pinch-hit against Smoltz when Watson had a sub-par day?